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The effect of light on seed germinationWhat is Transpiration?

Photosynthesis consists of light-dependent and light-independent reactions.

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Effect of different colors of light on the rate of photosynthesis.

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How does light intensity and duration affect the rate of photosynthesis?

I will do this by placing the Elodea in a test tube with sodium hydrogen carbonate then I will vary the light wavelength (color) using colored filters and count the number of oxygen bubbles given off using a pencil dot technique....

Investigate the effect of light on seed germination.

Aim: We will be trying to see if light intensity has an effect on the rate of photosynthsis.

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Introduction: "Photosynthesis is the conversion of light energy to chemical energy that is stored in glucose or other organic compounds; it occurs in plants, algae, and certain prokaryotes" (Campbell, G-16).

Effects of different colors of light on the photosynthesis rate.

Aim: To see if raising the light intensity increases the rate of photosynthesis.

During the process of photosynthesis, carbon dioxide plus water in the presence of sunlight, enzymes and chlorophyll produce glucose and oxygen as waste product.

I could then see that if the process would not give sufficient
results with the lamp at a distance from the pond weed at 50cm, then
process of photosynthesis would definitely cease to take place with
the light source at a distance of 100cm from the pond weed.

Prediction:I predict that raising the light intensity will increase the rate of photosynthesis.
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  • Effect of Light Colour on Rate of Photosynthesis Experiment

    Three factors can limit the speed of photosynthesis: light intensity, carbon dioxide concentration and temperature.

  • Effects of Light Intensity on the Rate of Photosynthesis

    The test will be to find out the relationship between light intensity (voltage) and the rate of photosynthesis.

  • to investigate the effect of light intensity on the light ..

    The lower the light intensity the slower the rate of photosynthesis and eventually it will decrease in l level.

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the effect of colored light on leaves | Photosynthesis | …

The most probable explanation for the results I gained; as mentioned
previously in my introduction, as light is one of the factors required
in order for photosynthesis to take place, as the intensity of the
light is increased, photosynthesis is able to take place at a higher

Free rate of photosynthesis Essays and Papers - …

I believe this will happen because when the light source is nearer to the plant more of the plants surface area is coming in to contact with the light from the desk lamp therefore more photosynthesis will occur which will mean more oxygen will be produced which will create more bubbles....

Free rate of photosynthesis papers, essays, and research papers.

See diagrams c
& d below…

Diagram c Diagram d

Results obtained from experiment : "Investigating if light intensity
effects the rate of photosynthesis in an aquatic plant."

As mentioned previously, the results I have obtained from the
experiment will be of measured in 5 intervals, ranging from 0cm
-100cm, 1 repeat reading taken as well as an original reading & an
average of the 2 results calculated.

Photosynthesis Science Fair Projects and Experiments

At a point (which was not
displayed on my graph, so logically this point is higher than the
highest light intensity I provided the pond weed with) the rate of
photosynthesis will stay steady , it will increase no further (see
diagram e).

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Prediction: I predict that as the light source (desk lamp) is moved closer to the pondweed (Elodea), the rate of photosynthesis will increase therefore more oxygen will be produced creating more bubbles.

Experiments to show factors required by Photosynthesis

6CO + 6H O ® C H O + 12O (in the presence of light energy and chlorophyll) Aim- The aim of the experiment is to determine what effect light intensity has upon the rate of photosynthesis of Canadian Pondweed (Elodea)....

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